Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina

Autores
Patterer, Noelia Isabel; Krohling, Daniela Mariel Ines; Zucol, Alejandro Fabián
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The phytolith assemblages of the El Palmar Formation (Late Pleistocene) are presented together with general stratigraphic and sedimentological data. The El Palmar Formation represents a channel system of the Uruguay river (South America) with longitudinal sandy gravel and gravelly sand bedforms, and associated floodplain deposits. The phytolith content of the unit was analyzed along the profiles on the right bank of the river in the middle reach (eastern Entre Ríos province, Argentina). Four outcropping profiles of the El Palmar Fm. were selected for detailed analyses: Santa Ana (Federación department), La Chola quarry, El Palmar National Park and Nueva Escocia (Colón department) localities. The herbaceous palaeoflora of the El Palmar Fm. is represented by mixed environments, such as meso-megathermic grassland with the presence of palm trees in a savanna ecosystem and micro-environments with aquatic plants and bamboo grasses that characterized a stratified forest in humid environments with high water availability. The reconstructed vegetation pattern is composed of a stratified gallery forest changing to temperate savanna, extended along the upper basin of the Uruguay river and occupying the river valley in the middle reach of the basin. The data contribute to the palaeobiodiversity knowledge of Quaternary fluvial sedimentary units of South America. In addition, the results give a better understanding of the evolutionary history of some vegetal communities, and especially the present palm trees of the El Palmar National Park reserve, as part of a relict flora that has inhabited the area since, at least, the Upper Pleistocene. The geological and micro-paleobotanical records of the El Palmar Fm. lead to the inference of general warm and humid conditions during most of the deposition of the formation, probably covering part of the last major interglacial period before the present (MIS 5).
Fil: Patterer, Noelia Isabel. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: Krohling, Daniela Mariel Ines. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina
Fil: Zucol, Alejandro Fabián. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Materia
ARGENTINA
EL PALMAR FORMATION
LATE PLEISTOCENE
PHYTOLITHS
URUGUAY RIVER VALLEY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/143263
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/143263
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, ArgentinaPatterer, Noelia IsabelKrohling, Daniela Mariel InesZucol, Alejandro FabiánARGENTINAEL PALMAR FORMATIONLATE PLEISTOCENEPHYTOLITHSURUGUAY RIVER VALLEYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The phytolith assemblages of the El Palmar Formation (Late Pleistocene) are presented together with general stratigraphic and sedimentological data. The El Palmar Formation represents a channel system of the Uruguay river (South America) with longitudinal sandy gravel and gravelly sand bedforms, and associated floodplain deposits. The phytolith content of the unit was analyzed along the profiles on the right bank of the river in the middle reach (eastern Entre Ríos province, Argentina). Four outcropping profiles of the El Palmar Fm. were selected for detailed analyses: Santa Ana (Federación department), La Chola quarry, El Palmar National Park and Nueva Escocia (Colón department) localities. The herbaceous palaeoflora of the El Palmar Fm. is represented by mixed environments, such as meso-megathermic grassland with the presence of palm trees in a savanna ecosystem and micro-environments with aquatic plants and bamboo grasses that characterized a stratified forest in humid environments with high water availability. The reconstructed vegetation pattern is composed of a stratified gallery forest changing to temperate savanna, extended along the upper basin of the Uruguay river and occupying the river valley in the middle reach of the basin. The data contribute to the palaeobiodiversity knowledge of Quaternary fluvial sedimentary units of South America. In addition, the results give a better understanding of the evolutionary history of some vegetal communities, and especially the present palm trees of the El Palmar National Park reserve, as part of a relict flora that has inhabited the area since, at least, the Upper Pleistocene. The geological and micro-paleobotanical records of the El Palmar Fm. lead to the inference of general warm and humid conditions during most of the deposition of the formation, probably covering part of the last major interglacial period before the present (MIS 5).Fil: Patterer, Noelia Isabel. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaFil: Krohling, Daniela Mariel Ines. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; ArgentinaFil: Zucol, Alejandro Fabián. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; ArgentinaPergamon-Elsevier Science Ltd2020-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/143263Patterer, Noelia Isabel; Krohling, Daniela Mariel Ines; Zucol, Alejandro Fabián; Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 100; 6-2020; 1-130895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102542info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981120300559info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:19Zoai:ri.conicet.gov.ar:11336/143263instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:08:19.474CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
title Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
spellingShingle Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
Patterer, Noelia Isabel
ARGENTINA
EL PALMAR FORMATION
LATE PLEISTOCENE
PHYTOLITHS
URUGUAY RIVER VALLEY
title_short Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
title_full Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
title_fullStr Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
title_full_unstemmed Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
title_sort Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina
dc.creator.none.fl_str_mv Patterer, Noelia Isabel
Krohling, Daniela Mariel Ines
Zucol, Alejandro Fabián
author Patterer, Noelia Isabel
author_facet Patterer, Noelia Isabel
Krohling, Daniela Mariel Ines
Zucol, Alejandro Fabián
author_role author
author2 Krohling, Daniela Mariel Ines
Zucol, Alejandro Fabián
author2_role author
author
dc.subject.none.fl_str_mv ARGENTINA
EL PALMAR FORMATION
LATE PLEISTOCENE
PHYTOLITHS
URUGUAY RIVER VALLEY
topic ARGENTINA
EL PALMAR FORMATION
LATE PLEISTOCENE
PHYTOLITHS
URUGUAY RIVER VALLEY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The phytolith assemblages of the El Palmar Formation (Late Pleistocene) are presented together with general stratigraphic and sedimentological data. The El Palmar Formation represents a channel system of the Uruguay river (South America) with longitudinal sandy gravel and gravelly sand bedforms, and associated floodplain deposits. The phytolith content of the unit was analyzed along the profiles on the right bank of the river in the middle reach (eastern Entre Ríos province, Argentina). Four outcropping profiles of the El Palmar Fm. were selected for detailed analyses: Santa Ana (Federación department), La Chola quarry, El Palmar National Park and Nueva Escocia (Colón department) localities. The herbaceous palaeoflora of the El Palmar Fm. is represented by mixed environments, such as meso-megathermic grassland with the presence of palm trees in a savanna ecosystem and micro-environments with aquatic plants and bamboo grasses that characterized a stratified forest in humid environments with high water availability. The reconstructed vegetation pattern is composed of a stratified gallery forest changing to temperate savanna, extended along the upper basin of the Uruguay river and occupying the river valley in the middle reach of the basin. The data contribute to the palaeobiodiversity knowledge of Quaternary fluvial sedimentary units of South America. In addition, the results give a better understanding of the evolutionary history of some vegetal communities, and especially the present palm trees of the El Palmar National Park reserve, as part of a relict flora that has inhabited the area since, at least, the Upper Pleistocene. The geological and micro-paleobotanical records of the El Palmar Fm. lead to the inference of general warm and humid conditions during most of the deposition of the formation, probably covering part of the last major interglacial period before the present (MIS 5).
Fil: Patterer, Noelia Isabel. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
Fil: Krohling, Daniela Mariel Ines. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina
Fil: Zucol, Alejandro Fabián. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
description The phytolith assemblages of the El Palmar Formation (Late Pleistocene) are presented together with general stratigraphic and sedimentological data. The El Palmar Formation represents a channel system of the Uruguay river (South America) with longitudinal sandy gravel and gravelly sand bedforms, and associated floodplain deposits. The phytolith content of the unit was analyzed along the profiles on the right bank of the river in the middle reach (eastern Entre Ríos province, Argentina). Four outcropping profiles of the El Palmar Fm. were selected for detailed analyses: Santa Ana (Federación department), La Chola quarry, El Palmar National Park and Nueva Escocia (Colón department) localities. The herbaceous palaeoflora of the El Palmar Fm. is represented by mixed environments, such as meso-megathermic grassland with the presence of palm trees in a savanna ecosystem and micro-environments with aquatic plants and bamboo grasses that characterized a stratified forest in humid environments with high water availability. The reconstructed vegetation pattern is composed of a stratified gallery forest changing to temperate savanna, extended along the upper basin of the Uruguay river and occupying the river valley in the middle reach of the basin. The data contribute to the palaeobiodiversity knowledge of Quaternary fluvial sedimentary units of South America. In addition, the results give a better understanding of the evolutionary history of some vegetal communities, and especially the present palm trees of the El Palmar National Park reserve, as part of a relict flora that has inhabited the area since, at least, the Upper Pleistocene. The geological and micro-paleobotanical records of the El Palmar Fm. lead to the inference of general warm and humid conditions during most of the deposition of the formation, probably covering part of the last major interglacial period before the present (MIS 5).
publishDate 2020
dc.date.none.fl_str_mv 2020-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/143263
Patterer, Noelia Isabel; Krohling, Daniela Mariel Ines; Zucol, Alejandro Fabián; Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 100; 6-2020; 1-13
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/143263
identifier_str_mv Patterer, Noelia Isabel; Krohling, Daniela Mariel Ines; Zucol, Alejandro Fabián; Phytolith analysis in Quaternary fluvial deposits (El Palmar Formation-Late Pleistocene) of the Uruguay River valley, Entre Ríos province, Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 100; 6-2020; 1-13
0895-9811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102542
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981120300559
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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